Ethylene glycol is used as a protecting group for carbonyl groups in organic synthesis. Treating a ketone or aldehyde with ethylene glycol in the presence of an acid catalyst (e.g., p-toluenesulfonic acid; BF3â¢Et2O) gives the corresponding a 1,3-dioxolane, which is resistant to bases and other nucleophiles.
Charles Street and Beacon Hill in Historic Boston, Massachusetts. Shops on Charles Street are an eclectic mix of boutiques, galleries, jewelry stores and home accessory shops with plenty of nearby restaurants, inns and historic sites.
Essentials: Make Way for Ducklings. Location of Nancy SchÃ¶n's sculpture: Boston's Public Garden. Enter through the Charles Street Gate (corner of Beacon Street and Charles Street), and follow the sidewalk that's parallel to Beacon Street. You'll quickly see the statues on your left.